Invention Grant
- Patent Title: Gas turbine engine blade tip clearance apparatus and method
- Patent Title (中): 燃气轮机发动机叶片间隙装置及方法
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Application No.: US12166720Application Date: 2008-07-02
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Publication No.: US08011883B2Publication Date: 2011-09-06
- Inventor: Frederick M. Schwarz , J. Walter Smith
- Applicant: Frederick M. Schwarz , J. Walter Smith
- Applicant Address: US CT Hartford
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Hartford
- Agency: Bachman & LaPointe, P.C.
- Main IPC: F01D11/08
- IPC: F01D11/08

Abstract:
A method for controlling blade tip clearance within a gas turbine engine includes a compressor having at least one first rotor assembly, wherein the blade tips in each of at least one first rotor assembly has a mating geometry with at least one of at least one blade seal surfaces, and a clearance distance extending between the blade tips and the blade seal surfaces; a turbine having at least one second rotor assembly, wherein the blade tips in each of at least one second rotor assembly has a mating geometry with at least one of at least one blade seal surfaces, and a clearance distance extending between the blade tips and the blade seal surfaces; providing an actuator selectively operable to move at least one rotor assembly relative to the shroud; providing an electronic engine controller having a control logic for operating the actuator; and moving at least one first rotor assemblies and at least one second rotor assembly relative to the shroud using the actuator at a response rate according to the control logic to alter the clearance distance.
Public/Granted literature
- US20080267769A1 GAS TURBINE ENGINE BLADE TIP CLEARANCE APPARATUS AND METHOD Public/Granted day:2008-10-30
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